Results 171 to 180 of about 3,314 (215)
Development of a Multi-Sensor GNSS-IoT System for Precise Water Surface Elevation Measurement. [PDF]
Sensors (Basel)Wang J, Garthwaite MC, Wang C, Hellen L.
europepmc +1 more source
Some of the next articles are maybe not open access.
Related searches:
Related searches:
Integrity monitoring of NavIC by parsing broadcast ephemeris
Journal of Applied Geodesy, 2023Abstract Global navigation satellite systems (GNSS) are used to provide position estimation to the users. These navigation systems must meet the required navigation parameters (RNP) parameters. Among them integrity being the important parameter, defined as a navigation system’s honesty of the information provided to the user by ...
Sony Devalapally +2 more
openaire +1 more source
Measurement Science and Technology, 2021
Abstract Low Earth orbit (LEO) satellites are a promising type of navigation augmentation satellite for current global navigation satellite systems. Aiming at the navigation function, an effective broadcast ephemeris model needs to be designed for LEO satellites.
Lingdong Meng +3 more
openaire +1 more source
Abstract Low Earth orbit (LEO) satellites are a promising type of navigation augmentation satellite for current global navigation satellite systems. Aiming at the navigation function, an effective broadcast ephemeris model needs to be designed for LEO satellites.
Lingdong Meng +3 more
openaire +1 more source
Broadcast Ephemeris Accuracy Analysis for GPS Based on Precise Ephemeris
Applied Mechanics and Materials, 2014The accuracy of broadcast ephemeris is an important index of a satellite navigation system. The theory and method of precise ephemeris assessing broadcast ephemeris are introduced. The accuracy of GPS satellite broadcast ephemeris is assessed with the precise ones provided by IGS.
Rui Xi Jia +3 more
openaire +1 more source
Performance Evaluation of the CNAV Broadcast Ephemeris
Journal of Navigation, 2019The new Global Positioning System (GPS) Civil Navigation Message (CNAV) has been transmitted by Block IIR-M and Block IIF satellites since April 2014, both on the L2C and L5 signals. Compared to the Legacy Navigation Message (LNAV), the CNAV message provides six additional parameters (two orbit parameters and four Inter-Signal Correction (ISC ...
Ahao Wang +4 more
openaire +1 more source
Type B Fault Integrity Monitoring for BDS Broadcast Ephemeris
2020The integrity and continuity of aircraft precision approach are the most significant performance requirements for aviation users. To ensure positioning integrity of users, it is necessary to detect type B ephemeris fault one of the main integrity risk sources of precision approach.
Liang Li +3 more
openaire +1 more source
Computing satellite velocity using the broadcast ephemeris
GPS Solutions, 2004GPS has been used for applications where satellite velocities are needed as well as satellite positions. Traditionally, the position was determined from noisy code pseudoranges while the velocity came from delta carrier phase measurements. This motivates the need to have a velocity model to accompany the velocity data.
openaire +1 more source
Analysis and Modeling of GLONASS Broadcast Ephemeris Errors
2012One of the most problems in GNSS application is to obtained high precision ephemeris. In this paper, the error characters of GLONASS broadcast ephemeris (GBE) are analyzed carefully. one week data of all healthy orbiting satellites from GBE are calculated and their errors are figured out.
ChenXi Zhang +4 more
openaire +1 more source
Satellite autonomous navigation algorithm analysis based on broadcast ephemeris parameters
SCIENTIA SINICA Physica, Mechanica & Astronomica, 2015At present, the satellite on-board processing and transmission capacity of autonomous navigation is not enough to support the traditional centralized dynamic navigation algorithm. In order to augment the possibility of centralized onboard processing, this paper puts forward a centralized kinematics orbit determination method which is based on the long ...
XiaoLin JIA +5 more
openaire +1 more source